LIDAR finds a lost city in Cambodia

Using LIDAR technology to create terrain maps, archaeologists have uncovered a whole city in Cambodia by discovering unexplained “bumps”.
Instead of using maps and sifting through slowly unfolding digs, with this new tech researchers can see whole cities at a time and determine where best to begin.
In Cambodia, where unexploded land mines from previous wars remain, LIDAR mapping is particularly helpful.Interesting video.